Aqueous Fraction Analysis
Aqueous Fraction Analysis - Related Videos
11:44
Qualitative Characterization of the Aqueous Fraction from Hydrothermal Liquefaction of Algae Using 2D Gas Chromatography with Time-of-flight Mass Spectrometry
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Cited by 9 •
2016
A two-dimensional gas chromatography-time-of-flight mass spectrometry method is described for characterization of the aqueous fraction of bio-crude produced from hydrothermal liquefaction of algae. This protocol can also be employed to analyze the aqueous fraction of liquid products from fast pyrolysis, catalytic fast pyrolysis, catalytic deoxygenation and hydro-treating.
06:04
Aqueous Humor as a Liquid Biopsy for Retinoblastoma: Clear Corneal Paracentesis and Genomic Analysis
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Cited by 36 •
2021
The aqueous humor is a high-yield liquid biopsy for retinoblastoma, intraocular cancer that cannot be biopsied in vivo due to the risk of extraocular spread. Herein, a method for safely extracting aqueous humor via clear corneal paracentesis and steps for genomic analysis to identify prognostic biomarkers are presented.
03:03
Chemical Reactions in Aqueous Solutions
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2020
Chemical substances interact in many different ways. Certain chemical reactions exhibit common patterns of reactivity. Due to the vast number of chemical reactions, it becomes necessary to classify them based on the observed patterns of interaction. Water is a good solvent that can dissolve many substances. For this reason, many chemical reactions take place in water. Such reactions are called aqueous reactions. The three most common types of aqueous reactions are precipitation, acid-base, and...
08:22
Preparation of Mitochondrial Enriched Fractions for Metabolic Analysis in Drosophila
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Cited by 13 •
2015
Mitochondria play central roles in the regulation of metabolism and homeostasis. Subtle changes in mitochondrial metabolism that affect organismal physiology could be difficult to detect in whole organism metabolomics studies. Here we describe an isolation method that enhances the detection of subtle metabolic shifts in Drosophila melanogaster.
11:17
A Simple Fractionated Extraction Method for the Comprehensive Analysis of Metabolites, Lipids, and Proteins from a Single Sample
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Cited by 67 •
2017
A protocol for comprehensive extraction of lipids, metabolites and proteins from biological tissues using one sample is presented.
FAQs
These properties help determine which dissolved compounds remain in, or are recovered with, the aqueous phase and how they should be measured. Polarity can affect solute partitioning during phase separation, while concentration and molecular size influence the analytical approach. Considering these variables helps distinguish composition changes from differences caused by extraction or separation performance.
Solute partitioning shows how compounds distribute between phases during processing. Differences in partitioning can indicate that a condition favors recovery of particular water-soluble components or causes their loss to another fraction. Examining these changes helps researchers evaluate separation efficiency, identify potentially valuable compounds, and select processing conditions that improve recovery.
Measurements of dissolved compounds provide a composition-based view of what enters or remains in the aqueous phase. Comparing results across processing conditions can reveal shifts in solute recovery, changes in fraction composition, or inefficient separation. In bioengineering, these patterns help connect process conditions with biomass handling, product recovery, and downstream purification needs.
A typical workflow first obtains the aqueous phase through extraction or phase separation from the original complex sample. The recovered fraction is then characterized by measuring dissolved compounds with analytical techniques selected for properties such as concentration, polarity, or molecular size. Results can subsequently be compared across samples or processing conditions to assess composition and performance.
The measurement strategy should match the properties of the dissolved compounds being examined. Concentration, polarity, and molecular size are specifically relevant when selecting suitable analytical techniques. This alignment allows the analysis to characterize the components of the isolated phase rather than treating all dissolved material as equivalent, supporting more meaningful composition and process comparisons.
The approach supports bioprocess monitoring, biomass and waste valorization, metabolite profiling, and evaluation of product recovery. It can show whether valuable water-soluble compounds are present in a recovered fraction and whether processing conditions improve their separation. These findings provide a basis for refining recovery strategies and guiding subsequent downstream purification.